Abstract:
본 발명은 고내열 친유기성 층상 실리케이트 및 이를 이용한 폴리이미드 나노 복합재에 관한 것으로서, 더욱 상세하게는 층상 실리케이트 무기물이 말단기가 아민기로 치환된 올리고 아믹산 유기화제로 양이온 교환반응되어 개질된 고내열 친유기성 층상 실리케이트와, 상기 층상 실리케이트를 통상의 폴리이미드에 나노 복합화하여 제조된 열적 특성 및 열팽창계수 특성이 향상된 폴리이미드 나노 복합재에 관한 것이다.
Abstract:
본 발명은 평탄화 특성이 우수한 감광성 투명 폴리아믹산 올리고머와 이를 경화하여 제조된 폴리이미드 수지에 관한 것으로서, 보다 상세하게는 방향족 테트라카르복시산 이무수물과 방향족 디아민의 단량체를 중합반응시킴에 있어 특정 구조의 지방족 고리 함유 테트라카르복시산 이무수물과 감광성 기능기 함유 디아민 단량체 및 감광성기를 갖는 모노아민 화합물을 함유시켜 올리고머 수준으로 중합 반응하여 제조한 신규 구조의 폴리아믹산 올리고머와, 상기한 폴리아믹산 올리고머를 경화하여 제조된 것으로 자체 광반응이 가능하고 투명성 및 평탄화도가 개선되어 투명 유기 절연 재료 및 액정 소재의 고분자 격벽 재료로서 유용한 효과가 있는 고평탄화도를 갖는 감광성 투명 폴리이미드 수지에 관한 것이다.
Abstract:
PURPOSE: Provided is a polyolefin resin composition which uses the polyolefin resin as a matrix by nano compositing the delaminated organophilic layered silicate, polyolefin compatibilizer and the conventional fire retardant. The composite has excellent properties of mechanical strength, heat resistance, impact resistance, fabricability and fire resistance compared with conventional material. CONSTITUTION: The composite comprises: 10- 35wt.%(based on 100wt.% of the polyolefin resin) of organohalogen-based fire retardant; 0.5-10wt.% of the organophilic layered silicate in which the silicate is emulsified with organophosphorus acid salt and organo ammonium salt which are substituted with C12-36 alkyl groups or aromatic groups; 1-30wt.% polyolefin compatibilizer grafted with maleic acid, having average mol wt. of 5,000-90,000 and graft rate of 0.2-10 and more than one additive selected from a photo-stabilizer, a UV absorber, an anti-static agent, wax, pigments, an ignition delaying agent and a filler.
Abstract:
PURPOSE: Organic aluminosilicate based lamellar inorganic materials which are usefully used as a core material of various ultramodern industries such as electric, electronic, space and aviation industries by having superior heat resistance and organic affinity and low hygroscopic, and a method for preparing the same are provided. CONSTITUTION: In organic lamellar inorganic materials in which organic polymers are introduced between layers of aluminosilicate based lamellar inorganic materials, the organic aluminosilicate based lamellar inorganic materials are characterized in that the organic polymers introduced between layers of the aluminosilicate based lamellar inorganic materials are low polarity siloxane amine oligomer selected from siloxane amine oligomers represented as in chemical formulae 1a and 1b and siloxane amine oligomer in which alkyl group produced by reaction of alkyl carbonyl chloride is substituted represented as in chemical formula 2, where R1 and R2 are -(CH2)pX1(CH2)q- or formula 3 respectively, wherein X1 is -CH2- or -O-; R is -(CH2)nX2(CH2)k-, wherein X2 is -CH2- or -CH=CH-; l and m are an integral number between 1 to 300 respectively, and p, q, n and k are an integral number between 1 to 30 respectively.
Abstract:
PURPOSE: A waste PVC/PE-based polymer mixture is provided, to minimize the phase separation between the waste PVC and the waste PE by employing a specific copolymer, thereby improving the mechanical properties. CONSTITUTION: The waste PVC/PE-based polymer mixture comprises 100 parts by weight of waste plastic; 0.1-20 parts by weight of a copolymer having 30-99 wt% of a main chain of an ethylene bond and 1-70 wt% of a side chain of an ester group, an acetate group or an acryl group, as a compatibilizer; and optionally 0.01-3 parts by weight of a lubricant, 0.01-5 parts by weight of a stabilizer, and 0.01-1 parts by weight of an antioxidizing agent. The waste plastic comprises 1-99 parts by weight of waste poly(vinyl chloride); and 1-99 wt% of polyethylene; and the waste PVC is a hard PVC, a soft PVC or their mixture. The mixture also contains new PVC and PC instead of the waste PVC and the waste PE.
Abstract:
PURPOSE: Provided is a polyolefin-based resin composition excellent in strength, tracking resistance, fire retardancy, and flexibility, which can be used as insulating material. CONSTITUTION: The polyolefin-based resin composition contains: 100pts.wt. of a base resin mixture comprising 40-80wt% of a polyethylene resin having a density of 0.915-0.919g/cm3 and 20-60wt% of a polyolefin copolymer rubber containing 20-90wt% of propylene and having a Mooney viscosity of 61-100 at 100deg.C, wherein the polyethylene resin is ethylene homopolymer or copolymer of ethylene with one monomer selected from 1-butene, 1-pentene, 1-hexene, and 1-octene and the polyolefin copolymer rubber is ethylene-propylene copolymer rubber or ethylene-propylene-diene terpolymer rubber; 5-100pts.wt. of a metal hydroxide being aluminium hydroxide, magnesium hydroxide, or a mixture thereof; 10-60pts.wt. of a halogen-based organic fire-retardant agent; 5-30pts.wt. of antimony trioxide; and 0.1-5pts.wt. of a carbon black.
Abstract:
PURPOSE: An aromatic polyimide resin powder which, since it can be molded even under low processing temperature and pressure compared with existing aromatic polyimide resin powder and is excellent in heat resistance, abrasion resistance and mechanical property, can be applied to heat-resistant material of various industrial machines, electric and electromagnetic parts, and automobiles and is predicted to be extensively used for various high-advanced structural materials, and method for the preparation thereof are provided. CONSTITUTION: The aromatic polyimide resin powder has the following chemical formula 1: wherein B and C are the same as that are defined in the detailed description of the present invention. The method for the preparation of the aromatic polyimide resin powder is characterized by reacting an aromatic tetracarboxylic dianhydride with an aromatic diamine which trifluoromethyl phenyl benzamide group is introduced into.
Abstract:
본 발명은 고성능 폴리프로필린계 수지 혼합물의 발포체를 제조하기 위한 예비 발포입자와, 이러한 입자로 성형한 최종 성형체 및 이들의 제조방법에 관한 것으로서, 이 방법은 분산매로 물을, 분산제로는 탈크를 사용하고 발포제로서는 액화석유가스 또는 액화석유가스와 디클로로디플오로메탄의 혼합물을 사용하여 폴리프로필렌계 수지와 폴리올레핀계 이온성 고분자로 이루어진 고분자 혼합물을 예비발포시키는 것을 특징으로 한다. 본 발명에 의하면 종래에 비해 공해문제가 없어지고 또한 훨씬 저렴한 제조비용으로도 입자 상호간의 융착, 내발포, 저발포가 없는 균일한 비드 형태의 예비발포입자를 제조할수 잇으며, 인장 및 압축강도가 매우 우수한 최종성형 발포체를 얻을 수 있다.
Abstract:
The nylon based polymer composition consists of 95-40 wt.pts. of nylon, 5-60 wt.pts. of polyethylene (LDPE,LLDPE,HDPE) and 0.1- 20 wt.% of polyethylene based ionomer of formula (I). In the formula, E= m/(m+a+b+c) = 0.5-0.99, X=a/(a+b+c) = 0.05-0.85, Y= b/ (a+b+c) = 0.05-0.85, Z= c/(a+b+c) = 0.1-0.9, R1=H or CH3, R2=H or -(CH2)-nCH3 (n = 0-3) and M=Li,Na,K,Rb,Cs,Za,Pb,Ca. The composition has an excellent tensile stength, impact resistance and processability, and is useful for structural materials.
Abstract translation:尼龙基聚合物组合物由95-40重量份组成。 的尼龙,5-60重量。 的聚乙烯(LDPE,LLDPE,HDPE)和0.1-20重量%的式(I)的聚乙烯类离聚物。 在公式中,E = m /(m + a + b + c)= 0.5-0.99,X = a /(a + b + c)= 0.05-0.85,Y = b /(a + b + c)= 0.05-0.85,Z = c /(a + b + c)= 0.1-0.9,R1 = H或CH3,R2 = H或 - (CH2)-nCH3(n = 0-3)和M = Li, 钾,铷,铯,ZA,铅,钙。 该组合物具有优异的拉伸长度,抗冲击性和加工性,并且对结构材料有用。